Dacor Dishwasher Service Manual download pdf (Page 14)

Page 3-7

DaCor builT-in Dishwasher serviCe Manual

Heater

The heater in this dishwasher is inline between the wash

motor and the delivery tube. The 1200W heater wraps around

a stainless steel core tube. The heater can only be energized,

during a wash cycle, while the wash pump is running after the

low level pressure switch has been activated. Water is heated

as it passes through the heater to the center spray arm. This

heater has internal thermal protection.

While checking the heater, do not apply power to

it until the tub has filled with water and the motor

is operating!

Temperature Sensor and Soil Sensor

The electronic control reads information from two sensors to

adjust the wash cycle. The Thermistor and soil sensor are

integrated into the same housing mounted to the right side of

the sump. Both sensors extend into the outer section of the

sump to perform independent tasks.

The electronic control uses the Thermistor to monitor the

temperature of the water in the dishwasher. The turbidity or

soil sensor is used to monitor soil levels during a wash cycle.

A small amount of DC power is sent to the soil sensor emitter

mounted in one of the posts of the sensor housing. This emitter

turns DC power into a small beam of light to be transmitted to a

detector in the other post. As this light passes from one post to

another, the amount of soil in the water partially blocks the light

seen by the detector. The detector changes this light back into

DC voltage which returns to the control for analysis.

The level of soil in the water can be determined by this

returned voltage. Based on this information, the control makes

adjustments to the remainder of the wash cycle.

Checking the Thermistor

Start a Normal wash cycle and allow the dishwasher to fill and

wash for two minutes at which time press the Start/Cancel pad

twice (2). This will stop the dishwasher and send it to idle.

With the dishwasher in idle, press and hold the Normal wash and

the Start/Cancel pads simultaneously to start the test. The test

will show a two digit display for the temperature of the water

(from 0°F to 99°F). If the water temperature is over 99°F a

decimal point will be displayed to show 100°F, then the added

degrees over. This reading will be updated every three seconds

until the Start/Cancel pad is depressed to stop the test.

Refer to Water Temperature Test Mode on page 3-2 to check

the temperature of the thermistor.

INLINE HEATER – FIGURE 14

SENSOR MOUNTED

INTO SUMP – FIGURE 15

Thermistor

SENSOR WITH SEAL

– FIGURE 16

Thermistor

Turbidity Sensor

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 33 34

Comments to this Manuals

No comments

Dacor Dishwasher Service Manual Page 14

Comments to this Manuals

Related products and manuals for Dishwashers Dacor Dishwasher